Home / 3,048.75-4,209.21-2,490.55

Finding the Fourth Proportional to 3,048.75, 4,209.21 and 2,490.55

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Solution

The fourth proportional to 3,048.75, 4,209.21 and 2,490.55 is: 3,438.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,048.75 : 4,209.21 = 2,490.55 : x
  2. Step 2: Convert to fraction form
    3,048.75/4,209.21 = 2,490.55/x
  3. Step 3: Cross multiply
    3,048.75x = 4,209.21 × 2,490.55
  4. Step 4: Simplify right side
    3,048.75x = 10,483,247.97
  5. Step 5: Solve for x
    x = 10,483,247.97/3,048.75
  6. Step 6: Final answer
    x = 3,438.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.